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Theophylline-resistant and theophylline-sensitive "early" and "late" E rosette-forming cells in young and aged humans. 1987

W Malkowska-Zwierez, and E Skopińska-Rózewska, and T Wróblewski, and M Kwarecka, and M Pawińska, and B Wlodarska, and I J Polakowski, and J Pazdur
Department of Gerontology, Medical Center of Postgraduate Education, Warsaw, Poland.

The percentage of cells with high-affinity sheep red blood cell (SRBC) receptors, "active" or "early" rosette-forming cells, (ARFC) in theophylline-resistant peripheral blood T lymphocytes achieve higher values in aged subjects and, in particular, in the group with clinically manifested atherosclerosis. A diminished OKT-4/OKT-8 ratio in theophylline-resistant ARFC was noticed in this group. On the contrary, the proportion of the theophylline-resistant cells with low-affinity receptors, cold or late rosette-forming cells (CRFC) attained lower values in aged subjects than in young subjects. No statistical difference in the proportion of theophylline-sensitive T cells was evident between old and young people, both in ARFC and CRFC fractions. This is indicative of the elevation of activated (or less differentiated) cytotoxic T cells in the peripheral blood of aged subjects with clinically manifested atherosclerosis. The clinical aspect is still to be considered.

UI MeSH Term Description Entries
D008213 Lymphocyte Activation Morphologic alteration of small B LYMPHOCYTES or T LYMPHOCYTES in culture into large blast-like cells able to synthesize DNA and RNA and to divide mitotically. It is induced by INTERLEUKINS; MITOGENS such as PHYTOHEMAGGLUTININS, and by specific ANTIGENS. It may also occur in vivo as in GRAFT REJECTION. Blast Transformation,Blastogenesis,Lymphoblast Transformation,Lymphocyte Stimulation,Lymphocyte Transformation,Transformation, Blast,Transformation, Lymphoblast,Transformation, Lymphocyte,Activation, Lymphocyte,Stimulation, Lymphocyte
D008297 Male Males
D008875 Middle Aged An adult aged 45 - 64 years. Middle Age
D004351 Drug Resistance Diminished or failed response of an organism, disease or tissue to the intended effectiveness of a chemical or drug. It should be differentiated from DRUG TOLERANCE which is the progressive diminution of the susceptibility of a human or animal to the effects of a drug, as a result of continued administration. Resistance, Drug
D004912 Erythrocytes Red blood cells. Mature erythrocytes are non-nucleated, biconcave disks containing HEMOGLOBIN whose function is to transport OXYGEN. Blood Cells, Red,Blood Corpuscles, Red,Red Blood Cells,Red Blood Corpuscles,Blood Cell, Red,Blood Corpuscle, Red,Erythrocyte,Red Blood Cell,Red Blood Corpuscle
D005260 Female Females
D006801 Humans Members of the species Homo sapiens. Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D000328 Adult A person having attained full growth or maturity. Adults are of 19 through 44 years of age. For a person between 19 and 24 years of age, YOUNG ADULT is available. Adults
D000368 Aged A person 65 years of age or older. For a person older than 79 years, AGED, 80 AND OVER is available. Elderly
D000369 Aged, 80 and over Persons 80 years of age and older. Oldest Old

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